Encompasses the entire field of life sciences and provides comprehensive coverage of the world's published biological and biomedical research. This includes biology, botany, zoology, microbiology, veterinary medicine, biotechnology, environmental studies, biochemistry, biophysics, and bioengineering.

A comprehensive reference covering the life histories of North American birds. Provides detailed scientific information for each of the 716 species of birds nesting in the United States and Canada.

Includes image, video, and sound galleries of behaviors, habitat, nests, eggs and nestlings, and songs/calls selected from Cornell's Macaulay Library of Natural Sounds. An online project of the Cornell University Lab of Ornithology.